dig down, hough, pluck up, root up

Boyd’s Bible Dictionary:

(hok) (hock). Cutting the sinews of the hind, leg, hamstringing (Josh. 11:6,9; 2 Sam. 8:4).

Concise Bible Dictionary:

To lame a horse and render it useless by cutting the sinews of the hind leg, called the hamstring (Josh. 11:6,9; 2 Sam. 8:4; 1 Chron. 18:4).
 

Strong’s Dictionary of Hebrew Words:

Number:
6131 (find all occurrences in KJV Bible)
Transliteration:
`aqar
Phonic:
aw-kar’
Meaning:
a primitive root; to pluck up (especially by the roots); specifically, to hamstring; figuratively, to exterminate
KJV Usage:
dig down, hough, pluck up, root up